package com.gxl.butt.utils;

import org.apache.commons.lang.StringUtils;

import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;

public class AddressUtil {

    /**
     * 获取ip
     *
     * @param request
     * @return
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ip = null;
        try {
            ip = request.getHeader("x-forwarded-for");
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("Proxy-Client-IP");
            }
            if (StringUtils.isEmpty(ip) || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("WL-Proxy-Client-IP");
            }
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_CLIENT_IP");
            }
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_X_FORWARDED_FOR");
            }
            if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getRemoteAddr();
            }
        } catch (Exception e) {

        }

        return ip;
    }

    public static String getAddressByIp(String ip) {

        try {
            URL url = new URL("http://api.ip138.com/query/?ip=" + ip + "&datatype=jsonp");
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setConnectTimeout(5 * 1000);
            conn.setReadTimeout(5 * 1000);
            conn.setDoInput(true);
            conn.setDoOutput(true);
            conn.setUseCaches(false);
            conn.setInstanceFollowRedirects(false);
            conn.setRequestMethod("GET");
            conn.setRequestProperty("token", "06ca293a377db78845f52ca8cba1d3a3");
            int responseCode = conn.getResponseCode();
            if (responseCode == 200) {
                StringBuilder builder = new StringBuilder();
                BufferedReader br = new BufferedReader(
                        new InputStreamReader(conn.getInputStream(), "utf-8"));
                for (String s = br.readLine(); s != null; s = br
                        .readLine()) {
                    builder.append(s);
                }
                br.close();
                return builder.toString();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}